ISO 8426:2008
Withdrawn
View Superseded by
Hydraulic fluid power — Positive displacement pumps and motors — Determination of derived capacity
PDF , Hardcopy
English, French
01-22-2008
08-14-2025
ISO 8426:2008 specifies the methods of determining the derived capacity of hydraulic fluid power positive displacement pumps and motors under steady-state conditions and at defined, continuous shaft rotational frequencies.
Units can be tested as a positive displacement pump, with mechanical energy applied to the shaft and hydraulic energy obtained at the outlet fluid connection, or as a motor, with hydraulic energy supplied to the inlet fluid connection and mechanical energy obtained at the shaft.
| Committee |
ISO/TC 131/SC 8
|
| DevelopmentNote |
Supersedes ISO/DIS 8426. (01/2008)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes | |
| UnderRevision |
| Standards | Relationship |
| JIS B 8382:2010 | Identical |
| NF ISO 8426 : 2008 | Identical |
| NEN ISO 8426 : 2008 | Identical |
| BS ISO 8426:2008 | Identical |
| DIN ISO 8426:1994-01 | Identical |
| NBN E 48 103 : 1988 | Identical |
| PN 92/M-73243 : 1992 | Identical |
| ISO 4409:2007 | Hydraulic fluid power — Positive-displacement pumps, motors and integral transmissions — Methods of testing and presenting basic steady state performance |
| ASTM D 7721 : 2017 : REDLINE | Standard Practice for Determining the Effect of Fluid Selection on Hydraulic System or Component Efficiency |
| 17/30325994 DC : 0 | BS ISO 4409 - HYDRAULIC FLUID POWER - POSITIVE-DISPLACEMENT PUMPS, MOTORS AND INTEGRAL TRANSMISSIONS - METHODS OF TESTING AND PRESENTING BASIC STEADY STATE PERFORMANCE |
| BS ISO 4409:2007 | Hydraulic fluid power. Positive-displacement pumps, motors and integral transmissions. Methods of testing and presenting basic steady state performance |
| 05/30111949 DC : DRAFT JUL 2005 | ISO 4409 - HYDRAULIC FLUID POWER - POSITIVE DISPLACEMENT PUMPS, MOTORS AND INTEGRAL TRANSMISSIONS - METHODS OF TESTING AND PRESENTING BASIC STEADY STATE PERFORMANCE |
| SAE J1776_201402 | Marine Vehicles - Hydraulic System Pumps and Motors - Design and Specification Guide |
| ISO 5598:2008 | Fluid power systems and components — Vocabulary |
| ISO 4409:2007 | Hydraulic fluid power — Positive-displacement pumps, motors and integral transmissions — Methods of testing and presenting basic steady state performance |
| ISO 4391:1983 | Hydraulic fluid power — Pumps, motors and integral transmissions — Parameter definitions and letter symbols |
| ISO 1219-1:2012 | Fluid power systems and components — Graphical symbols and circuit diagrams — Part 1: Graphical symbols for conventional use and data-processing applications |
| ISO 3448:1992 | Industrial liquid lubricants — ISO viscosity classification |
| ISO 6743-4:2015 | Lubricants, industrial oils and related products (class L) — Classification — Part 4: Family H (Hydraulic systems) |
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